Binder or cementing material.



106. COMPOSITIONS,

COATING OR PLASTIC.

UNITED STATES PATENT OFFICE.

JAMES MILLAB NEIL, OF TORONTO, ONTARIO, CANADA, ASSIGNOR TO ALEXANDER M. BAY, OF TORONTO, CANADA.

BINDER OR CEMENTING MATERIAL.

No Drawing.

Specification of Letters Patent.

Application filed September 5, 1911.

To all whom it may concern Be it known that I, JAMES M. NEIL, of Toronto, in the county of York, Province of Ontario, Canada, have invented certain new and useful Improvements in Binder or Oementing Material; and I hereby declare that the following is a full, clear, and exact description thereof.

This invention is an improvement in a hinder or cementing material for use in construction work.

Heretofore in the manufacture of bricks, artificial stone, concrete and other construction materials, a solution of silicate of soda has been used as a binding material, and I am aware that silicate of soda has also been used in conjunction wi a calcium compgundand with sucrose (beet an cane su ar and molasses) for a similar purpose.

I have discovered that a more efiicient and economical binder or cementing material can be produced by a mixture of lucose and si l iflused in conjunction with a calcium compound, than by the use of sugar or molasses and silicate of soda used in conjunction with a calcium compound. The economy and efiiciency of the silicate of soda and glucose mixture are due to the lower cost 0 glucose, and to its property of rapidly decomposing when exposed to the atmosphere, thereby producing carbon dioxid. The carbon dioxid thus produced combines with the sodium of the silicate of soda forming sodium carbonate, at the same time liberating the silica in a celatinous condition, which, combining with the calcium, forms a true calcium silicate possessing great binding or cementing properties.

My novel binder is made by mixing glucose and silicate of sodawith a calcium compound. I preferably mix the ingredients in powdered fform in sibstantially the proortions 0 one part 0 lucose to ten parts 8f silicate of soda and one part of this mixtumrts of the calcium compound.

On mixing the above described binder with sand, gravel, rock, or other material whic 1 is esired to bind, sufficient water having been added to thoroughly moisten the mass, the above mentioned reactions take place resulting in binding the aggresolution to 100 pounds of calcium carbonate and mixed with the material which it is desired to bind, gives similar results.

The crushed stone. rock. sand or avel are mixedm dii'fl g1 y' 'w' 'ith calcium carbonate. The latter for economica reasons may Be used in the form of finely divided limestone, in the proportion of two or more parts of the crushed stone, etc., to one part of the finely divided limestone. To the above mixture there is then added a solution composed of glucose and silicate of soda in sufficient quantity to thoroughly moisten the mass, and the whole is again thoroughly mixed either by hand or mechanical means. On allowing this moistened mixture to stand it is found that chemical combination soon commences, heat being generated, and eventually the whole becomes a solid mass of great strength and durability.

The above mentioned solution of glucose and silicate of soda is made as follows: One

pound of the thick s ru v commercial lucose is added to ten pounds of the tElCE and if calcium carbonate was used 100 parts thereof would be required; if it was desired to use 40 parts of calcium in the making of the final mass.

Although I have found the above quantities of glucose and silicate of soda will produce good results, it is obvious that by in- LAGHIIII creasing the amount of glucose final products of greater strength and durability will be produced,-owing to the fact of bringing into active force larger quantities of calcium in the form of soluble bi-carbona-te.

What I claim is:

1. A binding material comprising a mixture of silicate of soda and glucose, substantially as described.

2. A material comprising a mixture of silicate of soda and glucose, and a calcium compound, substantially as described.

In testimony that I claim the foregoing as my own, I affix my signature in presence of two Witnesses.

JAMES MILLAR NEIL.

Witnesses:

FRANK E. VVILLSHER, LAWRENCE J. PASHLER.

Goyies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, .D. C. 

